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JEE Advanced 2009Paper 1

Exam: JEE Advanced
Year: 2009
Paper: Paper 1
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Advanced 2009 · Paper 1 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

The reaction of P_2 with X leads selectively to P_4 O_6 . The X is

The reaction of

P_2

with

X

leads selectively to

\mathrm{P}_4 \mathrm{O}_6

. The

\mathrm{X}

is

Options

Adry $\mathrm{O}_2$
Ba mixture of $\mathrm{O}_2$ and $\mathrm{N}_2$
Cmoist $\mathrm{O}_2$
D $\mathrm{O}_2$ in the presence of aq. $\mathrm{NaOH}$

Correct answer

B. a mixture of $\mathrm{O}_2$ and $\mathrm{N}_2$

Step-by-step solution

White phosphorus on reaction with limited supply of oxygen gives lower oxide

P_4 \mathrm{O}_6

. Therefore, air

\left(\mathrm{O}_2+\mathrm{N}_2\right)

is a good source for controlled supply of oxygen and the best choice for controlled oxidation of white phosphorus into lower oxide

\mathrm{P}_4 \mathrm{O}_6

.

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